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Sunsave

Sunsave

4.5(87 reviews)See reviews ↓·London

About the company

Sunsave was founded in 2022 and is co-founded by Alick and Ben. The company operates in the battery storage and home energy sector from London and has over 50 employees. Sunsave is a Which? It was authorised and regulated by the Financial Conduct Authority in September 2023. Sunsave offers a 20-year Sunsave Guarantee, with systems insured by Aviva against damage, fire, and theft for 20 years, and a 10-year workmanship guarantee on home batteries.

It provides remote monitoring of systems 24/7, free replacement parts including battery and inverter replacement, and downtime cover for payments if the system isn't working for an extended period. Sunsave has partnered with British Gas, Hive, and uSwitch, and partnered with Centrica in January 2025. Sunsave offers solar and battery systems through a subscription model called Sunsave Plus.

What customers say

Based on genuine customer reviews

Households seeking solar panels paired with battery storage make up the bulk of the work described, and the payment model that spreads costs over several years stands out as the reason many were able to proceed. Video calls form a recurring part of the process, with Jonny, Sue and Nick singled out for explaining options, answering detailed questions and producing likely generation figures without any sales pressure. Various customers describe the estimation model as accurate once the array was live. Installation is repeatedly called smooth, finished when promised and carried out to a high standard with little disruption, the contractors earning praise for their professionalism.

Trina Solar panels, Fox ESS inverters and battery storage feature in more than one account, as does the Sunsave Plus option. An aspect raised across a number of reviews is communication: households were kept informed from design through delivery and installation, then contacted again afterwards, with registration and paperwork handled for them. Plain-language answers and the reassurance covering repairs and replacements are valued, while the occasional hitch was dealt with quickly and left customers confident in the finished system.

Sunsave — Customer photo
Sunsave — Customer photo
Sunsave — Customer photo

Reviews

Reviews are taken from publicly available sources.

A
Aman7 August 2026

If I could give no stars I would. Our experience with SunSave has been absolutely horrific. We have been misled from the very beginning where SunSave changed their minds numerous times about the job itself including the number of solar panels being fitted on our property. The company have also made us jump through several hoops with the promise of installing solar panels. They have misled us leading us to spend several thousand pounds in the build up of the installation. We have followed all the recommended steps and the plan for the installation for them to turn up on the day and refuse to go ahead with the work. They are very unprofessional, unreliable and misleading. Avoid this company at all costs. 100% time wasters.

MS
Mark Speer22 July 2026

This is one of the best customer experiences I can ever recall having from the initial sales call to the installation of the solar panels. Everyone I have spoken to have been really helpful, knowledgeable and really believe in what they are going. A couple of special mentions - first to Nila my Solar Specialist who helped put together the proposal together and guide me through the process - she could not have been more helpful. Secondly Dan from operations who kept me up to date along the way and helped me with queries as I got used to the system. It is a company I would easily recommend and indeed have done already.

RR
Richard Robson21 July 2026

We looked at solar and battery installs previously, but other companies couldn’t give us any kind of performance figures of what we were likely to generate. Sunsave have a great estimation model, which after our installation we found extremely accurate. Sunsave have been a pleasure to deal with from start to finish. They’ve kept us in the loop from the planning phase through to installation, and have contacted us a few times after installation to guide us through the system setup along with help choosing a suitable energy tariff. We’re making immediate savings which is more than offsetting our finance for the system. It’s the best decision we’ve ever made. Their customer service is second to none, with every email replied to within a couple of hours. We really couldn’t recommend Sunsave enough.

M
Mits21 July 2026

Sunsave recently installed a solar system for me, and the overall experience was excellent. From the first enquiry through to installation and follow‑up, the team was professional, responsive, and easy to deal with. They clearly explained the options available, answered my questions in plain language, and made sure I understood how the system would benefit my home. The installation itself was completed on time and with minimal disruption. The installers arrived when they said they would, worked efficiently, and left everything tidy once the job was done. The system has been performing exactly as promised. Overall, I’m very happy I chose Sunsave and would highly recommend them to anyone considering solar. They delivered great service and a quality product.

SB
Subhes Bhattacharyya11 July 2026

We’ve recently installed a PV - Battery-Inverter system using the Sunsave Plus option. We had no down payment to make and the design, delivery and installation of the system were hassle free and smooth. The sales team was very helpful and knowledgeable and we got the financing decision very quickly. The installers were very professional and completed everything without causing problems. The registration of the system and the paperwork were handled professionally and quickly. The team kept us informed throughout the process and was very responsive. The system is now working and generating electricity in the hot summer weather.

JF
Jamie Ford6 July 2026

Excellent from start to finish. I had been thinking about solar for a while and finally started looking and finance options etc. I saw an advert for Sunsave and was intrigued. I arranged a video call with Jonny and he was excellent (for a Man U Fan), explained everything with no sales pressure at all. We worked through various options and he came up with the best system for what I wanted. I like how their model works, it won't be for everyone but I didn't want to borrow £10k+ and repay over a short period as it would massively impact any savings I made. Agreement signed and handed over to Sophie who arranged the install. Sophie kept me up to date with the progress. Scaffold booked in, erected as arranged. Install days came and the install team were there bright and early and got it done in a day. Very happy with the system and with the service from Sunsave. Thanks Jonny and Sophie! (if only my heat pump install from others was 10% as straight forward I would be over the moon)

RB
Richard Boulter25 June 2026

We've now completed the first year since installation of our home solar panels, inverter, and battery system designed by Sunsave. The outcomes on solar generation, electricity export surplus earnings, and savings on electricity costs predicted by Sunsave have all been met or exceeded. So, yes, we are very pleased we made this technology-led investment into a Sunsave proposal, even though it appeared quite daunting at the time. More than just the figures, however, were the challenges Sunsave faced in achieving a rapid re-think and work-around when our roof tiles required a more complex solution for solar panel fixing than originally envisaged. The lessons learned demonstrated that Sunsave excels at communications and problem solving, and these skills are part of the fundamental bedrock for every business start-up reaching out to succeed and grow in a very competitive market.

Battery storage & home energy in London compared

Ordered by rating, weighted by the number of reviews — businesses with only a handful of reviews do not jump to the top automatically. 8 businesses in this category in London are compared.

RankProviderRatingReviewsOpen Sat.
1Discover Solar Ltd★ 5,081Yes
2Solar Batteries UK★ 5,031No
3Excel Energy★ 5,021No
4British Solar Power★ 5,03Yes
5London Renewable Energy★ 4,610Yes
6Sunsave (this page)★ 4,587No
Contact
+442038683236www.sunsave.energy296, 302 High Holborn, London WC1V 7JH
Working hours
Monday09:00–18:00
Tuesday09:00–18:00
Wednesday09:00–18:00
Thursday09:00–18:00
Friday09:00–18:00
SaturdayClosed
SundayClosed